Happening Now

Photo by: Chris Ison
In this Oct. 23, 2010 file photo, Britain's Prince William and Kate Middleton leave the wedding of their friends Harry Mead and Rosie Bradford in the village of Northleach, England. According to an announcement from Clarence House in London, Tuesday Nov. 16, 2010, the couple are engaged, and will be married in 2011.(AP Photo/Chris Ison, pa , file)

Robert Mueller’s special counsel investigation into Russian meddling in the 2016 election has cost $6.7 million during the first four and a half months of the probe. Click to see past independent counsel investigations guilty of racking up high bills.